CAD Drawings CAD Drawings are provided as reference-only representations of the product. For latest dimensions always consult the current submittal sheet. Available CAD Drawings Variation Description Strainer: Round Nikaloy w/Tractor Grate -J Backwater Valve -7E 7E Nikaloy Grate -7E-2 7E-2 Bronze Grate -7E-93 7E-93 Cast Iron Grate